The voice, coming from behind a boulder on his left, took him by surprise.

Once or twice they lay in wait behind a boulder.

There was a single figure hiding behind a boulder almost directly below him.

Then he crawled closer and took cover behind a boulder.

They placed him behind a boulder on the slopes of a hill, where he died.

The survivors took position behind boulders and the dead bodies.

He was behind a boulder which masked all but his horse's head.

We found the journalist behind a boulder on the hillside.

Catching sight of a figure in blue behind a low boulder, fired.

He had positioned himself in least cover point and his team behind boulders, before attacking.